Will you with counters sum 29 The past-proportion of his infinite, 30 And buckle in a waist most fathomless 31 With spans and inches so diminutive 32 As fears and reasons?
These are beautiful words from Troilus, but he's essentially telling Hector, don't try to hem us in with logic. Don't use numbers to value the infinite.
Usually that's right, but Hector is not using logic coldly. He's saying, count the numbers of the dead, and set them against the one.
Hector speaks of these dead, speaks also of Helen, with nothing but love and regard. Troilus speaks with beautiful regard but only for the king's house, and it's surprising to see the nominal hero of the play suddenly espousing these values.